Annotation 2 The two ears are assumed identical and the ear selected as the reference is determined by keeping the phase difference between 0 and π radians, or the time difference positive.

Annotation 3 A fraction in terms of π radians appearing as the subscript in S( ) or N( ) where 0 ≤ ( ) ≤ π, indicates the interaural phase of signal or noise, e.g., Nπ/2Sπ/2.

Annotation 4 A decimal value for u, where –1.00 ≤ u ≤ +1.00, replacing the subscript u in the NuS( ) , condition indicates the degree of interaural noise correlation, e.g., N + 0.9Sm. Note that the correlation always requires a sign and where phase is exactly equal to an integral number of radians, it should be expressed as nπ/π.